Handle fastening device



June 18, 1935.

F. M. SPEZZANO HANDLE FASTENING DEVICE Filed Aug. 22, 1933 w 31 Lidia- WI TTNESSES:

ETEHEI- v INVENTOR Trankiilfir FlEZZ am:

Patented June 18, 1935 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to handle fastening devices, and has for an object to provide improved means for fastening a handle of wood or like material into the eye of an implement of rigid material.

A further object of the invention is to provide a wedge for expanding the inserted end of a handle, and with a second wedge employed as a looking means for the first expanding wedge.

A further object of the invention is to provide a wedge having means for accommodating a second wedge, which saidsecond wedge is slitted, and means provided by the first mentioned wedge for diverging the ends of the second wedge into locking position.

The invention, therefore, comprises a wedge which is to be driven into the handle and provided with a longitudinal slot having an inner wedge, with a second wedge slitted longitudinally driven into the slot of the first mentioned wedge and by engagement with the inner expanding wedge, diverged into locking engagement with the handle material.

The drawing illustrates an embodiment of the invention and the views therein are as follows:

Figure 1 is a view of the invention in side elevation shown applied to a conventional type of.

hammer,

Figure 2 is an end elevation of the handle inserted into a hammer head with the invention applied thereto,

Figure 3 is a sectional view taken on line 3-3 of Figure 2, I

Figure 4 is a perspective view of the first or larger wedge,

Figure 5 is a perspective view ofthe smaller or secondary wedge, and

Figure 6 is a view in end elevation of the larger wedge, as indicated by arrow 6 at Figure 4.

Like characters of reference indicate corresponding parts throughout the several views.

The present invention is adapted, to be associated with a great variety of handles applied to a great variety of implements. Ordinarily, such handles are constructed of wood and some expansion of the handle is required to efficiently lock the handle into the eye of theimplement. In the drawing, a hammer head I!) has been shown which, however, is to be understood as merely illustrative as any other type of implement, is fully within the scope of the present invention.

The implement of whatever type is provided with an eye, indicated at l i, into which the handle I2 is inserted in the usual well known manner.

After such insertion the wedge A is driven'into the handle. The width'of this wedge A will correspond approximately, .or as nearly approximately, as found desirable to the longest dimension of the eye and is of sufiicient length to extend a considerable distance within the eye. The elongated wedge itself is slitted longitudinally at l3 throughout the major part of its length and terminates in a wedge-shaped connecting bar M which constitutes an expander, the purpose of which will appear hereinafter. The inserted end of the wedge is, of course, tapered, as at l5, as is usual in the case of such wedges. The secondary wedge B is slitted at it and is of such thickness as to substantially fill the slot 13 laterally. It is driven in to form with the wedge A a cross, as indicated at Figure 2. i

The slot It extends the major part of the length of the member B and the adjacent edges of the slot are parallel except at the normally inner end, where they are tapered reversely, as shown at H. The wedge 13 is longer than the wedge A so that the tapers ll come in contact with the wedge bar i4 and diverged by continued driving so that the positions l8, as shown at Figure 3, are attained. As these ends expand as shown, they are driven into the material of the handle i2 and thereby thewedge B is locked firmly against withdrawal from the handle l2 and the wedge B thus effectively locks the wedge A in position. It should be noted that while the slot It extends the major portion of the length of the wedge B, it terminates a sufficient distance from the outer end to maintain the saidouter end from bending.

It will, therefore, be seen that the material of A the handle is not only expanded by the'wedge A,

but is also expanded by the wedge 13 and that,

by reason of such expansion, the handle is locked firmly in the eye of the implement.

I Of course, the handle fastening device herein described may be modified and changed in various ways without departing iromthe invention herein set forth and hereinafter described;

A handle fastening device comprisingjan elongated wedge having a longitudinal slot extending the major portion of its length and terminating in an expander, a second wedge adapted to be inserted into the slot of the first mentioned wedge and intersecting the same, said second mentioned wedge being of greater length than the firstsaid wedge and provided with a longitudinally disposed slot of less width than the thickness of the first said wedge, the walls of the slot being parallel except at the extremities where they are reversely tapered and adapted to be expanded by driving contact with'the expander of the first mentioned wedge to oppositely directed curvatures within the body of the handle.

FRANK M. SPEZZANO. 

